Home / 726,478.38-1,089,706.64-326,836.94

Finding the Fourth Proportional to 726,478.38, 1,089,706.64 and 326,836.94

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Solution

The fourth proportional to 726,478.38, 1,089,706.64 and 326,836.94 is: 490,250.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,478.38 : 1,089,706.64 = 326,836.94 : x
  2. Step 2: Convert to fraction form
    726,478.38/1,089,706.64 = 326,836.94/x
  3. Step 3: Cross multiply
    726,478.38x = 1,089,706.64 × 326,836.94
  4. Step 4: Simplify right side
    726,478.38x = 356,156,376,632.56
  5. Step 5: Solve for x
    x = 356,156,376,632.56/726,478.38
  6. Step 6: Final answer
    x = 490,250.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.